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Finding the Fourth Proportional to 86,306.06, 129,460.71 and 23,978.18

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Solution

The fourth proportional to 86,306.06, 129,460.71 and 23,978.18 is: 35,967.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,306.06 : 129,460.71 = 23,978.18 : x
  2. Step 2: Convert to fraction form
    86,306.06/129,460.71 = 23,978.18/x
  3. Step 3: Cross multiply
    86,306.06x = 129,460.71 × 23,978.18
  4. Step 4: Simplify right side
    86,306.06x = 3,104,232,620.88
  5. Step 5: Solve for x
    x = 3,104,232,620.88/86,306.06
  6. Step 6: Final answer
    x = 35,967.72

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